Bridge expansion joint structure with damping protection function

Abstract

The utility model discloses a bridge expansion joint structure with a damping protection function, which relates to the technical field of expansion joints and comprises two fixing boxes fixedly connected to two side walls of an expansion joint respectively. The supporting plate is arranged between the two fixed boxes; the two ends of the spring plate are arranged in the two fixing boxes respectively, and the middle of the spring plate is fixed to the bottom of the supporting plate to support the supporting plate; the cover plate is arranged on the supporting plate; the two connecting plates are fixedly connected to the two side walls of the expansion joint respectively. When a vehicle passes through the upper portion of the cover plate, the spring plate deforms downwards, impact force is reduced, meanwhile, the rubber block deforms due to stress, energy absorption and vibration reduction are carried out, the vehicle can smoothly pass through the expansion joint, the matched insertion teeth are inserted between the connecting plate and the cover plate, the jolting feeling when the vehicle passes can be reduced, and the service life of the vehicle is prolonged. And the rubber plate can connect the gap between the connecting plate and the cover plate, so that external accumulated water and foreign matters are prevented from entering the expansion joint to influence the function of the expansion joint.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion joints, in particular to a bridge expansion joint structure with shock absorption protection. Background Art

[0002] Expansion joints are common structures in buildings. Their main function is to withstand the expansion and contraction caused by factors such as temperature and humidity during the use of the building. Bridge expansion joints refer to expansion joints that are usually set between the two beam ends, between the beam end and the abutment, or at the hinged position of the bridge to meet the requirements of bridge deck deformation.

[0003] The expansion joint covers in the existing bridge expansion joint structures are installed on the expansion joints through the bottom mounting frames and bolts. The expansion joint covers have poor vibration reduction effects. When vehicles pass through the bridge expansion joints, the bridge head is prone to vehicle jumping, which reduces driving comfort and safety. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes an expansion joint structure for use on a bridge, which has a shock-absorbing effect, avoids vehicle jumping at the bridge head, and improves driving comfort and safety.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bridge expansion joint structure with shock absorption protection, comprising:

[0007] Two fixing boxes, which are respectively fixedly connected to the two side walls of the expansion joint;

[0008] A support plate, which is arranged between the two fixing boxes;

[0009] A spring plate, with two ends respectively disposed in two fixing boxes and a middle portion fixed to the bottom of the supporting plate to support the supporting plate;

[0010] A cover plate, which is arranged on the support plate;

[0011] And two connecting plates, which are respectively fixedly connected to the two side walls of the expansion joint, and the upper surface is flush with the upper surface of the expansion joint; the cover plate is located between the two connecting plates, and the upper surface is flush with the upper surfaces of the two connecting plates.

[0012] Furthermore, the two connecting plates are provided with inserting teeth on one side close to the cover plate and on both sides of the cover plate, and the inserting teeth on the connecting plates and the inserting teeth on the cover plates can be inserted and matched with each other.

[0013] Furthermore, a rubber plate is provided between the two connecting plates and the cover plate, and limiting grooves are provided on the sides of the two connecting plates and the cover plate, and the ends of the rubber plate are located in the limiting grooves.

[0014] Furthermore, a support member is provided between the cover plate and the support plate.

[0015] Furthermore, the two fixing boxes are fixedly connected with support beams inside, a tooth groove is provided on the top of the support beam, and both sides of the bottom of the support plate are fixedly connected with fixing teeth, and each fixing tooth is inserted into a tooth groove.

[0016] Furthermore, a rubber block is provided on the top of the support beam, and the rubber block is located at the bottom of the support plate.

[0017] Furthermore, the spring plate is curved and is formed by stacking a plurality of spring steels. A fixing rod is fixedly connected to the bottom of the support plate. The spring plate is located between the fixing rod and the support plate to fix the spring plate.

[0018] Furthermore, the inner walls of the bottom ends of the two fixing boxes are fixedly connected with positioning columns, and both ends of the spring plate are provided with strip openings, and the positioning columns pass through the strip openings.

[0019] Furthermore, it also includes multiple horizontal steel bars, each of which is arranged on both sides of the expansion joint along the length direction of the expansion joint. The outer sides of the two fixing boxes and the outer sides of the two connecting plates are fixedly connected with anchor steel bars, and the anchor steel bars and the horizontal steel bars are cast and fixed so that the two fixing boxes and the two connecting plates are fixed on the two side walls of the expansion joint.

[0020] Furthermore, it also includes two mounting members, which are arranged at the bottom of the fixing box to support the fixing box, and steel plates are arranged at the bottom of the two mounting members.

[0021] The beneficial effects of the utility model are:

[0022] When a vehicle passes over the cover plate, the cover plate is subjected to downward force, thereby transmitting the force to the support plate, and the spring plate under the support plate is deformed downward to reduce the impact force. At the same time, the rubber blocks on both sides of the bottom of the support plate are deformed by force, thereby absorbing energy and reducing vibration, making it convenient for the vehicle to pass through the expansion joint smoothly, while avoiding the impact force on the expansion joint.

[0023] The cover plate and the connecting plate are flush with the upper surface of the expansion joint, so that the vehicle can pass through the expansion joint smoothly, and the insert teeth between the connecting plate and the cover plate can reduce the bumpy feeling when the vehicle passes by, making the vehicle more comfortable when passing by;

[0024] The rubber plate can connect the gap between the connecting plate and the cover plate, thereby preventing external water and foreign matter from entering the expansion joint and affecting the function of the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional structural cross-sectional view of a bridge expansion joint structure with shock-absorbing protection proposed by the utility model;

[0026] Figure 2 This is a schematic cross-sectional view of a bridge expansion joint structure with shock-absorbing protection proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of fixed teeth, support beams and rubber blocks of a bridge expansion joint structure with shock-absorbing protection proposed by the utility model.

[0028] In the figure: 1 fixing box, 2 anchoring steel bars, 3 horizontal steel bars, 4 connecting plates, 5 rubber plates, 6 cover plates, 7 supporting parts, 8 insert teeth, 9 fixing teeth, 10 rubber blocks, 11 supporting beams, 12 positioning columns, 13 supporting plates, 14 fixing rods, 15 spring plates, 16 steel plates, and 17 mounting parts. DETAILED DESCRIPTION

[0029] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0032] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0033] Reference Figure 1-3 , a bridge expansion joint structure with shock-absorbing protection, is used in the drying process of medicinal potassium chloride production, in order to quickly break up and dry the potassium chloride that is easy to absorb moisture and agglomerate, thereby improving the drying efficiency of potassium chloride.

[0034] The bridge expansion joint structure with shock absorption protection comprises two fixing boxes 1, a support plate 13, a spring plate 15, a cover plate 6 and two connecting plates 4;

[0035] Openings are provided on both side walls of the expansion joint, and a plurality of horizontal steel bars 3 are arranged inside the openings along the length direction of the expansion joint. Anchor steel bars 2 are fixedly connected to the outer sides of the two fixing boxes 1 and the outer sides of the two connecting plates 4. The anchor steel bars 2 and the horizontal steel bars 3 are fixed by iron wires, and then concrete is poured in the openings, so that the two fixing boxes 1 and the two connecting plates 4 are fixed to the side walls of the expansion joint through the anchor steel bars 2, and each fixing box 1 is also provided with a mounting member 17 at the bottom to support the fixing box 1 and facilitate the pouring of concrete, and a steel plate 16 is provided at the bottom of the two mounting members 17, and the steel plate 16 can close the bottom of the expansion joint.

[0036] The spring plate 15 is curved and is formed by stacking a plurality of spring steels. Strip openings are provided at both ends of the spring plate 15. Positioning posts 12 are fixedly connected to the inner walls of the bottom ends of the two fixing boxes 1. Both ends of the spring plate 15 extend into the two fixing boxes 1 respectively, so that the positioning posts 12 pass through the strip openings at the ends of the spring plate 15, thereby positioning the spring plate 15. The support plate 13 is arranged on the top of the spring plate 15, and a fixing rod 14 is fixedly connected to the bottom of the support plate 13. The spring plate 15 is located between the fixing rod 14 and the support plate 13 to fix the middle part of the spring plate 15, so that the spring plate 15 supports the support plate 13 and provides a vibration reduction effect.

[0037] A support beam 11 is fixedly connected to the inside of the two fixing boxes 1, and a tooth groove is opened on the top of the support beam 11. Fixed teeth 9 are fixedly connected to both sides of the bottom of the support plate 13, and each fixed tooth 9 is inserted into a tooth groove. A rubber block 10 is provided on the top of the support beam 11, and the rubber block 10 is located at the bottom of the support plate 13. The support plate 13 can be supported by the support beam 11, and because each fixed tooth 9 is inserted into a tooth groove, the support beam 11 can be positioned. When the support plate 13 is subjected to force, the rubber block 10 will be pressed down, and the rubber block 10 will be deformed to absorb energy and reduce vibration.

[0038] A support member 7 is provided on the support plate 13, and the support member 7 is a steel section. The cover plate 6 is arranged on the support member 7, and the upper surface of the cover plate 6, the upper surfaces of the two connecting plates 4 and the upper surface of the expansion joint are flush. The two connecting plates 4 are provided with teeth 8 on one side close to the cover plate 6 and on both sides of the cover plate 6, and the teeth 8 located on the connecting plate 4 and the teeth 8 located on the cover plate 6 can be inserted and matched with each other, thereby filling the gap of the expansion joint to facilitate the passage of vehicles.

[0039] A rubber plate 5 is provided between the two connecting plates 4 and the cover plate 6. Limiting grooves are provided on the sides of the two connecting plates 4 and the cover plate 6. The ends of the rubber plate 5 are located in the limiting grooves. The rubber plate 5 can connect the gap between the two connecting plates 4 and the cover plate 6, thereby preventing external water accumulation and foreign matter from entering the expansion joint and affecting the function of the expansion joint.

[0040] The working principle of the bridge expansion joint structure with shock absorption protection is as follows: since the upper surface of the cover plate 6, the upper surfaces of the two connecting plates 4 and the upper surface of the expansion joint are flush, the vehicle can smoothly pass through the expansion joint, and since the insert teeth 8 located on the connecting plate 4 and the insert teeth 8 located on the cover plate 6 can be inserted and matched with each other, the bumpy feeling when the vehicle passes can be reduced, making the vehicle more comfortable when passing;

[0041] When a vehicle passes over the cover plate 6, the cover plate 6 is subjected to downward force, thereby transmitting the force to the support plate 13. The spring plate 15 below the support plate 13 deforms downward to reduce the impact force. At the same time, the rubber blocks 10 on both sides of the bottom of the support plate 13 are deformed by force to absorb energy and reduce vibration, making it convenient for the vehicle to pass through the expansion joint smoothly while avoiding the impact force on the expansion joint.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bridge expansion joint structure with shock absorption protection, characterized in that: include: Two fixing boxes (1) are respectively fixedly connected to two side walls of the expansion joint; A support plate (13) disposed between the two fixing boxes (1); A spring plate (15), two ends of which are respectively arranged in the two fixing boxes (1) and a middle part of which is fixed to the bottom of the supporting plate (13) to support the supporting plate (13); A cover plate (6) disposed on the support plate (13); And two connecting plates (4) are respectively fixedly connected to the two side walls of the expansion joint, and the upper surface is flush with the upper surface of the expansion joint; the cover plate (6) is located between the two connecting plates (4), and the upper surface is flush with the upper surfaces of the two connecting plates (4).

2. A bridge expansion joint structure with shock absorption protection according to claim 1, characterized in that: Insert teeth (8) are provided on one side of the two connecting plates (4) close to the cover plate (6) and on both sides of the cover plate (6), and the insert teeth (8) on the connecting plates (4) and the insert teeth (8) on the cover plate (6) can be inserted and matched with each other.

3. The bridge expansion joint structure with shock absorption protection according to claim 1 is characterized in that: A rubber plate (5) is provided between the two connecting plates (4) and the cover plate (6), and limiting grooves are provided on the sides of the two connecting plates (4) and the cover plate (6), and the end of the rubber plate (5) is located in the limiting groove.

4. The bridge expansion joint structure with shock absorption protection according to claim 1 is characterized in that: A support member (7) is provided between the cover plate (6) and the support plate (13).

5. The bridge expansion joint structure with shock absorption protection according to claim 1 is characterized in that: The two fixing boxes (1) are fixedly connected inside with a support beam (11), the top of the support beam (11) is provided with a tooth groove, and both sides of the bottom of the support plate (13) are fixedly connected with fixing teeth (9), and each of the fixing teeth (9) is inserted into one of the tooth grooves.

6. The bridge expansion joint structure with shock absorption protection according to claim 5 is characterized in that: A rubber block (10) is provided on the top of the support beam (11), and the rubber block (10) is located at the bottom of the support plate (13).

7. The bridge expansion joint structure with shock absorption protection according to claim 1 is characterized in that: The spring plate (15) is curved and is formed by stacking a plurality of spring steels. A fixing rod (14) is fixedly connected to the bottom of the support plate (13). The spring plate (15) is located between the fixing rod (14) and the support plate (13) to fix the spring plate (15).

8. The bridge expansion joint structure with shock absorption protection according to claim 1 is characterized in that: The inner walls of the bottom ends of the two fixing boxes (1) are fixedly connected with positioning columns (12), and both ends of the spring plate (15) are provided with strip-shaped openings, and the positioning columns (12) pass through the strip-shaped openings.

9. The bridge expansion joint structure with shock absorption protection according to claim 1 is characterized in that: It also comprises a plurality of horizontal steel bars (3), each of which is arranged on both sides of the expansion joint along the length direction of the expansion joint, and the outer sides of the two fixing boxes (1) and the outer sides of the two connecting plates (4) are fixedly connected with anchor steel bars (2), and the anchor steel bars (2) and the horizontal steel bars (3) are cast and fixed, so that the two fixing boxes (1) and the two connecting plates (4) are fixed on the two side walls of the expansion joint.

10. The bridge expansion joint structure with shock absorption protection according to claim 1, characterized in that: It also comprises two mounting members (17) which are arranged at the bottom of the fixing box (1) to support the fixing box (1), and steel plates (16) are arranged at the bottom of the two mounting members (17).

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